<?php

/**
 * Created by PhpStorm.
 * User: YUWENXUAN
 * Date: 2017/4/7
 * Time: 17:34
 */
class bus extends trafic
{
    protected $speed = 100;

    public function BBB()
    {
        echo 'BBB';
    }

    function getCount()
    {
        // TODO: Implement getCount() method.
    }


}